So today I tried the night mode that came with android pie just to see how much battery does it save. But while going back and forth between apps that support that mode, I noticed a blue shadow following any fully blacked pixels. For example, if I pull up the notifaction panel while night mode is on, a blue shadow can be noticed following the pixels that were black. Its kinda like the pixels that were black must get that blue shadow before they display other colors. I also noticed that as the screen gets dimmer, the blue shadow density would increase, and vice versa. If the brightness was at the highest possible then the blue shadow wont appear.
Does this issue happen with anyone else? Is this an OLED problem? Or is it just my phone?..